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BlackPixelOfScreen(3)

NAME

   BlackPixelOfScreen, WhitePixelOfScreen, CellsOfScreen,
   DefaultColormapOfScreen, DefaultDepthOfScreen, DefaultGCOfScreen,
   DefaultVisualOfScreen, DoesBackingStore, DoesSaveUnders,
   DisplayOfScreen, XScreenNumberOfScreen, EventMaskOfScreen,
   HeightOfScreen, HeightMMOfScreen, MaxCmapsOfScreen, MinCmapsOfScreen,
   PlanesOfScreen, RootWindowOfScreen, WidthOfScreen, WidthMMOfScreen -
   screen information functions and macros

SYNTAX

   unsigned long BlackPixelOfScreen(Screen *screen);

   unsigned long WhitePixelOfScreen(Screen *screen);

   int CellsOfScreen(Screen *screen);

   Colormap DefaultColormapOfScreen(Screen *screen);

   int DefaultDepthOfScreen(Screen *screen);

   GC DefaultGCOfScreen(Screen *screen);

   Visual *DefaultVisualOfScreen(Screen *screen);

   int DoesBackingStore(Screen *screen);

   Bool DoesSaveUnders(Screen *screen);

   Display *DisplayOfScreen(Screen *screen);

   int XScreenNumberOfScreen(Screen *screen);

   long EventMaskOfScreen(Screen *screen);

   int HeightOfScreen(Screen *screen);

   int HeightMMOfScreen(Screen *screen);

   int MaxCmapsOfScreen(Screen *screen);

   int MinCmapsOfScreen(Screen *screen);

   int PlanesOfScreen(Screen *screen);

   Window RootWindowOfScreen(Screen *screen);

   int WidthOfScreen(Screen *screen);

   int WidthMMOfScreen(Screen *screen);

ARGUMENTS

   screen    Specifies the appropriate Screen structure.

DESCRIPTION

   The BlackPixelOfScreen macro returns the black pixel value of the
   specified screen.

   The WhitePixelOfScreen macro returns the white pixel value of the
   specified screen.

   The CellsOfScreen macro returns the number of colormap cells in the
   default colormap of the specified screen.

   The DefaultColormapOfScreen macro returns the default colormap of the
   specified screen.

   The DefaultDepthOfScreen macro returns the default depth of the root
   window of the specified screen.

   The DefaultGCOfScreen macro returns the default GC of the specified
   screen, which has the same depth as the root window of the screen.

   The DefaultVisualOfScreen macro returns the default visual of the
   specified screen.

   The DoesBackingStore macro returns WhenMapped, NotUseful, or Always,
   which indicate whether the screen supports backing stores.

   The DoesSaveUnders macro returns a Boolean value indicating whether the
   screen supports save unders.

   The DisplayOfScreen macro returns the display of the specified screen.

   The XScreenNumberOfScreen function returns the screen index number of
   the specified screen.

   The EventMaskOfScreen macro returns the root event mask of the root
   window for the specified screen at connection setup.

   The HeightOfScreen macro returns the height of the specified screen.

   The HeightMMOfScreen macro returns the height of the specified screen
   in millimeters.

   The MaxCmapsOfScreen macro returns the maximum number of installed
   colormaps supported by the specified screen.

   The MinCmapsOfScreen macro returns the minimum number of installed
   colormaps supported by the specified screen.

   The PlanesOfScreen macro returns the number of planes in the root
   window of the specified screen.

   The RootWindowOfScreen macro returns the root window of the specified
   screen.

   The WidthOfScreen macro returns the width of the specified screen.

   The WidthMMOfScreen macro returns the width of the specified screen in
   millimeters.

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